Gear shifting in milliseconds: controlled by our electronic double clutch transmission unit for silky-smooth shifting without jerks or interruption of tractive force.

Features

• Integrated control unit for double-clutch transmissions
• Hybrid technology
• 32-bit microcontroller
• Temperature range - 40°C to + 145°C
• Acceleration: 20 g
• 4 integrated speed sensors, 4 road sensors, 2 pressure sensors, temperature sensor
• 11 partially integrated actuators

Principle of operation

Integrated control unit for the activation and regulation of a double-clutch transmission consisting of two sub-gearboxes which can each be switched on and off by a clutch to allow for operation without torque interruption during gear shift. The control unit takes over the following tasks:

• Activation of the clutches (prop valves) with measurement of the clutch pressure
• Activation of 4 gear shifters (4 PWM valves, 1 SW valve) with displacement measurement
• Activation of 2 safety valves (SW-valve), one each per sub-gearbox
• Activation of the main pressure (prop valve)
• Activation of the cooling oil pressure (prop valve)
• Measurement of the clutch speeds (primary, secondary)
• Measurement of the output speed (with pre/post-detection)
• Measurement of the transmission temperature